submarine-n; 2 Senses

Sense Number 1: a submersible warship

Commentary: SUBMARINE[+entity][+artifact][+vessel][+warship][+submergible]

The nuclear submarines can stay at depth for long stretches of time.
The transport ship was sunk by a torpedo from an enemy submarine.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a big, long sandwich

Commentary: SUBMARINE[+entity][+food][+sandwich][+big][+long]

Mary made submarines for lunch with cold cuts and loaves of French bread.
Can you pick me up a submarine for lunch on your way back to the office?

WordNet 3.0 Sense Numbers: 2